Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data/System/Data/IDbConnection.cs

@@ -0,0 +1,43 @@
+//------------------------------------------------------------------------------
+// <copyright file="IDbConnection.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">markash</owner>
+// <owner current="true" primary="false">laled</owner>
+//------------------------------------------------------------------------------
+
+namespace System.Data {
+    using System;
+
+    public interface IDbConnection : IDisposable {
+
+        string ConnectionString {
+            get;
+            set; 
+        }
+
+        int ConnectionTimeout {
+            get;
+        }
+
+        string Database {
+            get;
+        }
+
+        ConnectionState State {
+            get;
+        }
+
+        IDbTransaction BeginTransaction();
+
+        IDbTransaction BeginTransaction(IsolationLevel il); 
+
+        void Close();
+
+        void ChangeDatabase(string databaseName);
+
+        IDbCommand CreateCommand();
+
+        void Open();
+    }
+}